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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 680 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) blue-brown-brown (b) blue-brown-black (c) violet-brown-black (d) brown-blue-black
  6. 6.🌈 In the resistor colour code, which number does yellow stand for?
  7. 7.🌈 In the resistor colour code, which number does blue stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) brown-white-red (b) white-brown-orange (c) white-brown-brown (d) white-brown-red
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-red (b) brown-white-black (c) white-brown-brown (d) brown-white-brown
  10. 10.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does black stand for?
  17. 17.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-red (b) orange-red-brown (c) red-orange-red (d) orange-red-orange
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) white-orange-orange (c) orange-white-orange (d) white-orange-yellow
  24. 24.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does grey stand for?
  27. 27.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does white stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8600 Ω resistor? (a) grey-blue-orange (b) grey-blue-red (c) grey-blue-brown (d) blue-grey-red
  32. 32.🌈 In the resistor colour code, which number does orange stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) green-yellow-orange (b) yellow-green-yellow (c) yellow-green-red (d) yellow-green-orange
  34. 34.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-black (b) brown-orange-black (c) white-orange-brown (d) orange-white-black
  40. 40.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 34
  3. 25
  4. the one nearest an end
  5. blue-brown-black
  6. 4
  7. 6
  8. white-brown-red
  9. brown-white-brown
  10. 370
  11. 7
  12. 3100
  13. 54
  14. 5.6
  15. 780
  16. 0
  17. 90
  18. 730
  19. 38000
  20. 7600
  21. 3.1
  22. orange-red-red
  23. white-orange-orange
  24. 4000
  25. 22000
  26. 8
  27. 530
  28. 74
  29. 770
  30. 9
  31. grey-blue-red
  32. 3
  33. yellow-green-orange
  34. 59
  35. 9.8
  36. 820
  37. 9100
  38. 890
  39. white-orange-black
  40. 68

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